One vertex per element, one color per generator, with an edge from x to x·s.
(2,4)(6,10)(7,12)(21,22,26,24)(23,25,28,27)(6,10)(7,12)(14,17)(18,20)(21,23,26,28)(22,27,24,25)(5,6,9,10)(7,11,12,8)(13,14,16,17)(15,18,19,20)(21,24,26,22)(23,25,28,27)(1,2)(3,4)(5,7)(6,11)(8,10)(9,12) involution — undirected(5,8,9,11)(6,7,10,12)(13,15,16,19)(14,18,17,20)(21,25)(22,23)(24,28)(26,27)A Cayley diagram is a choice, not a fact about the group. Another drawing of this group — in a book, or on a different generating set — may look nothing like this one.